Shuttle tension



` May 1, 19,281 1,668,191

A. F. CLEMENTS SHUTTLE TENSION 'Fi1ed Jan,l0, 1927 Patented May l, 1928.

UNITED STATES PATENT OFFICE.

ALBERTF. CLEMENTS, OF OSHKOSH, WISCONSIN, ASSIGNOR TO WAITE CARPET COH- PANY, OF OSHKOSH, WISCONSIN, A CORPORATION OF WISCONSIN. Y i

SHUTTLE TENsIoN.

` Application led JanuarylO, 1927. vSerial No. 160,184.

The tension device of the present invention is designedto fit into a shuttle for the purpose of regulating the tension applied to the outflowing strand of twine or yarn, and

the object ofthe invention is lto so construct `the device that a smooth and even spring pressure will `be applied to onesidefof the strand in such away as to hold the strand rmly against the surface of the Afeed roller .10 over which it travels, thereby permitting the strand to discharge without im ediment and at the same time preventing t e possibility of entanglement due to an overfeeding of the strand from the coil carried by the shuttle. The invention also relates to means provided for regulating the spring Atension to the desired degree.

Further objects and details will appear from the description of the inventionin conjunction with the accompanying drawing wherein: i y j Figure 1 is atop view vof the shuttle showing the tension device of the present invention;

Fig. 2 is a. top or plan view of the tension device on enlarged scale; j

Fig. 3 is a sectional view taken on the stepped line 3-3 of Fig. 2; and

Fig. 4 is a sectional plan viewtaken on line 4-4 of Fig. 3.

`The device is used in conjunction with the shuttle comprising a body 10 oi? square dimensions in cross section and tapered at its ends 11 and 12 in the usual manner. The shuttle is tapered on its interior to provide a housing for an elongated coil 13 ofyarn, twine, or the like,A theinterior wall of the shuttle being provided with circumferentially extending teeth orserrations 14 which bear against the surface of the coil and serve to hold its convolutions in properly arranged relation to one another.

.The coil is further held in place by the provision of a strap 15 which extends from end to end of the shuttle and is secured at its forward end by the provision of a` ring 16 which engages a hook 17 in the body of the shuttle. The above features are common or standard in shuttles now in use and torin no part of the present invention.

The shuttle tension device which constitutes the subject matter of the present invention comprises a square base plate 18 which is secured by screws 19 or the like to the floor of the recess in the body of the ture 23 terminates at a point in proximate relation to the periphery of a roller 25 which mounted upon a bearing stud 26 recessed at its upper end to receive a threaded oil cup 27 having a spring-pressed ball 28 enclosing the inlet orifice 29 and having an oil port 30 at the base ofthe cup for discharging oil kto lubricate theroller bearings.

The roller co-operates with an obliquely disposed slightly bowed plate sprin 31 which bears against the periphery o the f roller and terminates in a re-curved tip32 extending'beyond the roller. The opposite end of the spring is provided with a coil or convolution 33 which is carried around an adjusting post 34which upstands from the base plate near the inner `corner at a point diagonally opposite from` the corner over which the twine or yarn passes'in discharging. Theinturned end 35 of the terminal convolution in the sprin is entered into a slot 36 .in the side of t e adjusting post 34, so that by rotating the post a greater or less amount of tension may be applied to the roller 25. y i

In order to regulate the spring tension,` the upper end-37 :of the post is squarexor flattened `to receive the slotted inner end of a T-shaped handle 38 provided at its free end with a cross head having formed therein a. series of apertures 40, any one of which is adapted to receive a screw 41 the lower end of which is entered into a lug 42 formed on the side of the boss or protuberance 21 in proximate lateral relation to the discharge orifice 23. By turning the T-shaped handle` to the desired degree, and entering the screw 40 through a selected orifice, the spring tension may be regulated. Y

In use, the twine or yarn is threaded through the conical or funnel-shaped channel 22 and between the roller and spring, so that in passing out over the roller the twine or arn will be subjected to the compressive action of the spring which will not interfere with its smooth, easy and regular feeding and'will at the same time impose sufficient tension to prevent an overfeeding of the twine or yarn. Y

The device is simple and compact in structure and easily fits into a shuttle of standard formation, and subserves the purpose intended in a highly eilicient manner.

I claim:

l. In a-shuttle tension, a member provided with an open-ended guide channel for the passage of twine, a roller in proximate relation to the outfeeding end of said channel, a plate spring positioned to apply tension against said roller, means for regulating the tension'of said spring, said means including a rotable member to which one end of the spring is attached, and means for rotating said member adapted to be secured in several positions of adjustment, substantially as described.' f i Y 2. Ina shuttle tension, a member provided with an open-ended guide channel for the passage of twine, a roller in proximate relation to the outfeeding end of said channel, a plate spring positioned to apply tension against said roller, means for regulating the 1, tension of said spring, said means including a rotatable member to which one end of the spring is attached, and means for rotating said member, substantially as described.

3. In a shuttle tension, a member provided with an open-ended guide channel for the passage of twine, a roller in proximate relation to the outfeeding end of said channel, a spring positioned to apply tension against said roller, and a lever secured to the end oit said rotating member and provided with meansV for holding said lever in different positions of adjustment, substantially as described.

4. In a shuttle tension, a member provided with an open-ended guide channel for the passage of twine, a roller in proximate relation to the outfeeding end of said channel, a plate spring ositioned to apply tension against said' ro ler, and a lever secured to the end of said rotating member and pro-V vided with means for holding said lever in different positions of adjustment, substantially as described.

5. In a tension device for shuttles, the combination of af plate provided with a thickened portion cored to afford a tapering openended channel, a roller in proximate relation to the reduced end of the said tapered channel, and a plate springextending in substantially tangential `relation to the surface of said roller and positioned to press against the yarn or twine feeding over said roller, substantially as described.

6. In a tension device for shuttles, the combination of a plate provided with a thickened ortioncored to afford a tapering open-ende channel, a roller in proximate relation to the reduced end of the said tapered channel, a plate spring extending in substantially tangential relation to the surface of said roller and positioned to press against the yarn or twine feeding over said roller, a rotatably mounted post to which one end of said plate s ring is attached, and means for rotatin said post and holdin the same in adjustecgl position, substantie ly as described.

7. In a tension device for shuttles, the combination 0f a plate provided with a thickened ortion cored to afford a tapering open-ended) channel, a roller in proximate relation to the reduced end of the said tapered channel a plate spring extending in substantially tangential relation to the Vsurface of said roller and positioned to press against the yarn orvtwine feeding over said roller, a rotatably mounted post to which one end of said plate spring isattached, means for rotating said post and holding the same in adjusted position, said means being in the form of a lever fitted to the free end or" said post and dprovided with a plurality of apertures, an locking means adapted to engage with a selected aperture .for holding the lever in adjusted position, substantially as described.

ALBERT F. CLEMENTS@ 

